Embodiments provide techniques for adjusting coloration of an image. A first selection of first one or more reference points within a first image is received. A second selection of a second one or more reference points within a second image is also received. Embodiments determine a coloration difference between a coloration of the first one or more reference points within the first image and a coloration of the second one or more reference points within the second image. The coloration of at least a portion of the first image is then adjusted, based on the determined coloration difference.